title: Meta-analysis of multitreatment studies.
abstract: Studies comparing more than two competing therapies are common in several fields, but standard meta-analytic methods can make only pairwise comparisons. The methods proposed in this article, a generalization of current meta-analytic methods, allow for any number of competing therapies and include both fixed- and random-effects models.
authors.affiliation: Duke Clinical Research Institute, Durham, North Carolina 27705, USA. hasse002@mc.duke.edu
authors.forename: V
authors.initials: V
authors.lastname: Hasselblad
mesh_terms: D000318:Adrenergic beta-Agonists / Q000627:therapeutic use; D000789:Angina, Unstable / Q000188:drug therapy; D005343:Fibrinolytic Agents / Q000627:therapeutic use; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D016015:Logistic Models; D015201:Meta-Analysis as Topic; D008881:Migraine Disorders / Q000517:prevention & control; D016017:Odds Ratio; D011613:Psychotherapy / Q000379:methods; D012044:Regression Analysis; D012107:Research Design; D016540:Smoking Cessation / Q000523:psychology
chemical_list: D000318:Adrenergic beta-Agonists; D005343:Fibrinolytic Agents; D006493:Heparin